CN107983753A - A kind of rubbish disperses pretreatment-centralized burning treatment process - Google Patents
A kind of rubbish disperses pretreatment-centralized burning treatment process Download PDFInfo
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- CN107983753A CN107983753A CN201711321799.4A CN201711321799A CN107983753A CN 107983753 A CN107983753 A CN 107983753A CN 201711321799 A CN201711321799 A CN 201711321799A CN 107983753 A CN107983753 A CN 107983753A
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- rubbish
- aerobic fermentation
- pretreatment
- foul smell
- treatment process
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000002699 waste material Substances 0.000 claims abstract description 52
- 239000000446 fuel Substances 0.000 claims abstract description 50
- 238000002203 pretreatment Methods 0.000 claims abstract description 17
- 238000010248 power generation Methods 0.000 claims abstract description 9
- 238000010564 aerobic fermentation Methods 0.000 claims description 85
- 230000035943 smell Effects 0.000 claims description 47
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 39
- 238000000855 fermentation Methods 0.000 claims description 23
- 238000002485 combustion reaction Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 7
- 239000000470 constituent Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 abstract description 6
- 238000004056 waste incineration Methods 0.000 abstract description 5
- 230000004151 fermentation Effects 0.000 description 17
- 238000005553 drilling Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000011026 diafiltration Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000012631 food intake Nutrition 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011031 large scale production Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000001932 seasonal Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
- C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
- C12P5/023—Methane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
Abstract
Disperse to pre-process centralized burning treatment process the invention discloses a kind of rubbish, comprise the following steps that：Crude waste is transported to several rubbish pre-treatment plants around incineration plant, derivatived fuel is prepared into each rubbish pre-treatment plant；Obtained derivatived fuel is transported to the power generation of incineration plant centralized burning again.The economic benefit of waste incineration and generating electricity can be significantly improved using the technique, reduces investment and the operation cost of waste incineration and generating electricity.
Description
Technical field
The present invention relates to field of garbage disposal, and in particular to a kind of rubbish disperses pretreatment-centralized burning treatment process.
Background technology
It is a kind of technology of garbage disposal most thoroughly, hygienic to carry out power generation by waste combustion using rubbish, since it is with minimizing
Degree is big, and processing procedure mechanization degree is high, and environment influences the advantages that small, is rapidly developed in China.Unfortunately, rubbish
Power generation by waste combustion has relatively excessive investment and running cost so that its development receives a definite limitation, it is only economical at present compared with
Developed regions are had ready conditions use, and existing garbage incineration technology pattern is designed primarily directed to crude waste is burned, and is deposited
In problems with：
1) it is less economical to receive fortune
The receipts fortune economy of county (city) domain house refuse centralized processing, is mostly derived from population in the region of county density and big and medium-sized cities phase
Than there is the difference of the order of magnitude, even in Cities in Yangtze River Delta collar region, the density of population of county-level city (area) also only up to 900~
1500 people/km2, and the completed region of the city density of population of the same area is up to 15000~20000 people/km2.This results in county
The service coverage product of (city) domain house refuse facility for the central disposal must significantly be more than the similar facility in big or middle city, because
And garbage transporting distance, unit cost are high.
2) refuse thermal value is unstable
The food garbage component of high-moisture percentage is to influence the principal element of its Lower heat value, county (city) domain agriculture in house refuse
The seasonal characteristics of village's food consumption are more more than city.Hence in so that change between the Lower heat value season of county (city) domain house refuse
Amplitude bigger, be unfavorable for burning process stablizes progress.At present, county (city) level municipal solid waste incinerator of operation has been put into, to the greatest extent
Pipe has still been continued to use stablizes its Lower heat value by refuse pit to increase method that moisture content leaches, but the effect stablized of calorific value and
The cost of additional percolate processing, still has and very big improves leeway.
3) scale and benefit are not high
Waste incineration and generating electricity invests with having obvious large-scale production characteristic, and scale is bigger, and returns of investment are higher.It is general low
500 tons of scale treating capacities are handled in day, returns of investment will substantially be deteriorated.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention disclose a kind of rubbish and disperses pretreatment-centralized burning treatment process, sharp
The economic benefit of waste incineration and generating electricity can be significantly improved with the technique, reduces investment and the operation cost of waste incineration and generating electricity.
The present invention is achieved through the following technical solutions：
A kind of rubbish disperses pretreatment-centralized burning treatment process, comprises the following steps that：
(1) crude waste is transported to several rubbish pre-treatment plants around incineration plant, is pre-processed in each rubbish
Derivatived fuel is prepared into factory；
(2) obtained derivatived fuel in step (1) is transported to the power generation of incineration plant centralized burning.
Wherein, in the step (1), the method that crude waste is prepared into derivatived fuel in rubbish pre-treatment plant is：
(11) it will be placed in by the crude waste of screening in aerobic fermentation device and carry out aerobic fermentation；
(12) the desiccation product obtained by aerobic fermentation in step (11) is sent to sorting unit and carries out sorting process, selecting can
Fire part；
(13) combustible constituent selected is prepared into derivatived fuel.
Wherein, in step (11), foul smell and the treatment process of percolate that aerobic fermentation produces are：
A, the percolate that aerobic fermentation produces is sent to anaerobic ferment devices progress anaerobic fermentation and prepares biogas, by gained
Biogas is sent to odor treating device；
B, the foul smell that aerobic fermentation produces is collected and is delivered to odor treating device；
C, the mixed gas of biogas and foul smell fully in burning odor treating device；
D, by odor treating device, the heat that biogas is produced with foul smell burning is delivered to aerobic fermentation device, is temperature
Too low aerobic fermentation device heats.
The aerobic fermentation device is equipped with incubation cavity, and the heat that biogas is produced with foul smell burning has been delivered to combustion product
In the incubation cavity of aerobe fermentation device.
In the step (11), the screening of crude waste comprises the following steps：
A, crude waste is sent into feeding equipment, and carries out pretreatment and remove thick rubbish, other tiny rubbish are through broken
It can be sent after bag to installation for fermenting processing；
B, artificial separation is carried out to the thick rubbish of removing, the combustiblerefuse sub-elected can be sent to fermentation after crushing
Device processing.
The derivatived fuel is specially derivatived fuel rod.
At present, domestic each incineration plant generally employs drip in storage hole and removes moisture content to stablize the calorific value with improving crude waste
Operation.According to the difference of crude waste moisture content (60%~70%), the yield of percolate reach rubbish 0.15 per ton~
0.30 ton, the process of derivatived fuel is prepared by pretreatment of the present invention, the percolate generation that product enters incineration plant burning can be eliminated
Link, meanwhile, the very small amount percolate that preprocessing process produces can produce biogas, gained after anaerobic ferment devices fermentation
The foul smell mixed combustion that is produced in odor treating device with crude waste aerobic fermentation of biogas, while complete foul smell and natural pond
The processing of gas, and can be to have after the high-temperature gas that produces of foul smell and biogas combustion is passed through the incubation cavity of aerobic fermentation device
Aerobe fermentation device heats, and for winter low temperature environment, can effectively be kept the temperature for aerobic fermentation device, make internal crude waste
All the time optimum fermentation temp is maintained, promotes the progress of fermentation fast and stable, shortens the aerobic fermentation cycle, stablizes and improves obtained
Extension fuel calorific value.
In the prior art, usually biogas is used to generate electricity, prepares the purposes such as fuel cell and illumination, and the system of derivatived fuel
In standby, the method for the foul smell generally use biological deodorization of the aerobic fermentation generation of crude waste is handled, and deodorization efficiency is low, into
This height.
The present invention in derivatived fuel preparation, percolate that crude waste aerobic fermentation is produced through anaerobic ferment devices at
Biogas, and the foul smell produced using biogas combustion aerobic fermentation are prepared after reason, while solves crude waste aerobic fermentation
Percolate and Odor control problem, reduce percolate processing and the process of Odor control and the use of relevant device, no
The efficiency of percolate and Odor control is improve only, also effectively reduces processing cost, and foul smell and biogas combustion produce
After high-temperature gas is passed through aerobic fermentation device, moreover it is possible to kept the temperature for the aerobic fermentation of crude waste, promote the progress of aerobic fermentation, carry
The preparation efficiency of high derivatived fuel.
A kind of rubbish aerobic fermentation-stench processing system, including aerobic fermentation device, the aerobic fermentation bottom of device
It is connected by Guan Yuyi anaerobic ferment devices of leachate collection, and anaerobic ferment devices are used to ferment from aerobic fermentation device receipts
The percolate of collection, aerobic fermentation device upside are connected with foul smell collecting pipe, and the foul smell collecting pipe other end connects a foul smell
Processing unit, odor treating device are connected by conduit one with anaerobic ferment devices.
The aerobic fermentation device is specially fermentation cabin, and the fermentation cabin side wall and top plate are integral type, and side wall and top
Incubation cavity is equipped with the middle part of plate, the incubation cavity is connected by conduit two with odor treating device, and fermentation cabin side wall is additionally provided with exhaust
Pipe, the exhaust pipe are connected with incubation cavity.
Valve is equipped with the leachate collection pipe, foul smell collecting pipe, conduit one, conduit two and exhaust pipe, it is described smelly
An air pump is respectively provided with gas collecting pipe and conduit two.
The aerobic fermentation device, anaerobic ferment devices, odor treating device are arranged in rubbish pre-treatment plant.
The present invention can also set humiture control device, humiture control device and each valve and air pump in fermentation cabin
It is associated, and then realize automatically controlling for crude waste aerobic fermentation humiture.
Compared with prior art, the present invention have the following advantages and advantages：
1st, a kind of rubbish of the present invention disperses pretreatment-centralized burning treatment process, rubbish be made after derivatived fuel be reduced to
The 30% of crude waste, makes refuse burning system capacity of incinerator improve three times, corresponding investment, operation cost substantially reduce；
2nd, a kind of rubbish of the present invention disperses pretreatment-centralized burning treatment process, can be from carrying by biological dewatered and sorting
High reducing noncombustibles, glass content etc. improves the combustion quality into stove rubbish with stablizing Lower heat value, stablizes and improves
The combustion quality of combustiblerefuse；
3rd, a kind of rubbish of the present invention disperses pretreatment-centralized burning treatment process, solves small scale and is difficult to concentrate rubbish
The problem of burning, system and method using the present invention overcome rubbish source and disperse to concentrate rubbish caused by with administrative region splitting
The problem of burning, by reasonable Arrangement garbage derivatived fuel factory, processing, the derivative of processing are collected by scattered rubbish
Fuel is concentrated burned again, can substitute existing garbage transfer station function, and collecting refuse process is become cleaner, warp
Ji, in addition, the rubbish in small towns can also be burned by this pattern, makes it possible town and country rubbish integrated treatment；
4th, a kind of rubbish of the present invention disperses pretreatment-centralized burning treatment process, shortens crude waste aerobic fermentation
In the cycle, improve garbage treatment efficiency, and lifts the quality of crude waste aerobic fermentation, and then stablizes and improve derivatived fuel
Calorific value；
5th, a kind of rubbish of the present invention disperses pretreatment-centralized burning treatment process, in derivatived fuel preparation, crude waste
The percolate that aerobic fermentation produces prepares biogas after anaerobic ferment devices are handled, and is produced using biogas combustion aerobic fermentation
The foul smell gone out, while solve the percolate of crude waste aerobic fermentation and the problem of Odor control, reduce percolate processing
With the process of Odor control and the use of relevant device, the efficiency of percolate and Odor control is not only increased, is also effectively reduced
Processing cost, and after the high-temperature gas that produces of foul smell and biogas combustion is passed through aerobic fermentation device, moreover it is possible to it is crude waste
Aerobic fermentation insulation, promote the progress of aerobic fermentation, improve the preparation efficiency of derivatived fuel.
Brief description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is rubbish aerobic fermentation-stench processing system schematic diagram of the present invention；
Mark and corresponding parts title in attached drawing：
1- aerobic fermentation devices, 11- leachate collection pipes, 12- foul smell collecting pipes, 13- incubation cavities, 14- conduits two, 15-
Exhaust pipe, 2- anaerobic ferment devices, 3- odor treating devices, 31- conduits one, 4- air pumps.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As shown in Figure 1, a kind of rubbish of the present invention disperses pretreatment-centralized burning treatment process, comprise the following steps that：
(1) crude waste is transported to several rubbish pre-treatment plants around incineration plant, is pre-processed in each rubbish
Derivatived fuel is prepared into factory；
(2) obtained derivatived fuel in step (1) is transported to the power generation of incineration plant centralized burning.
Wherein, in the step (1), the method that crude waste is prepared into derivatived fuel in rubbish pre-treatment plant is：
(11) it will be placed in by the crude waste of screening in aerobic fermentation device and carry out aerobic fermentation；
(12) the desiccation product obtained by aerobic fermentation in step (11) is sent to sorting unit and carries out sorting process, selecting can
Fire part；
(13) combustible constituent selected is prepared into derivatived fuel.
Wherein, in step (11), foul smell and the treatment process of percolate that aerobic fermentation produces are：
A, the percolate that aerobic fermentation produces is sent to anaerobic ferment devices progress anaerobic fermentation and prepares biogas, by gained
Biogas is sent to odor treating device；
B, the foul smell that aerobic fermentation produces is collected and is delivered to odor treating device；
C, the mixed gas of biogas and foul smell fully in burning odor treating device；
D, by odor treating device, the heat that biogas is produced with foul smell burning is delivered to aerobic fermentation device, is temperature
Too low aerobic fermentation device heats.
In the step (11), the screening of crude waste comprises the following steps：
A, crude waste is sent into feeding equipment, and carries out pretreatment and remove thick rubbish, other tiny rubbish are through broken
It can be sent after bag to installation for fermenting processing；
B, artificial separation is carried out to the thick rubbish of removing, the combustiblerefuse sub-elected can be sent to fermentation after crushing
Device processing.
The derivatived fuel is specially derivatived fuel rod.
As shown in Fig. 2, a kind of rubbish aerobic fermentation-stench processing system, including aerobic fermentation device 1, the aerobic hair
1 bottom of ferment device is connected by leachate collection pipe 11 with an anaerobic ferment devices 2, and anaerobic ferment devices 2 are used to ferment
The percolate collected from aerobic fermentation device 1, the upside of aerobic fermentation device 1 are connected with foul smell collecting pipe 12, and the foul smell is collected
12 other end of pipe connects an odor treating device 3, and odor treating device 3 is connected by conduit 1 with anaerobic ferment devices 2.
The aerobic fermentation device 1 is specially fermentation cabin, and the fermentation cabin side wall and top plate are integral type, and side wall and top
Incubation cavity 13 is equipped with the middle part of plate, the incubation cavity 13 is connected by conduit 2 14 with odor treating device 3, and fermentation cabin side wall is also set
There is exhaust pipe 15, the exhaust pipe 15 is connected with incubation cavity 13.
Valve is equipped with the leachate collection pipe 11, foul smell collecting pipe 12, conduit 1, conduit 2 14 and exhaust pipe 15
, it is respectively provided with an air pump 4 on the foul smell collecting pipe 12 and conduit 2 14.
The aerobic fermentation device 1, anaerobic ferment devices 2, odor treating device 3 are arranged in rubbish pre-treatment plant.
Embodiment 2
As shown in Figure 1, a kind of rubbish of the present invention disperses pretreatment-centralized burning treatment process, comprise the following steps that：
(1) crude waste is transported to several rubbish pre-treatment plants around incineration plant, is pre-processed in each rubbish
Derivatived fuel is prepared into factory；
(2) obtained derivatived fuel in step (1) is transported to the power generation of incineration plant centralized burning.
Wherein, in the step (1), the method that crude waste is prepared into derivatived fuel in rubbish pre-treatment plant is：
(11) will by screening crude waste be placed in aerobic fermentation device carry out aerobic fermentation 72 it is small when；
(12) the desiccation product obtained by aerobic fermentation in step (11) is sent to sorting unit and carries out sorting process, selecting can
Fire part；
(13) combustible constituent selected is prepared into derivatived fuel rod.
Wherein, in step (11), foul smell and the treatment process of percolate that aerobic fermentation produces are：
A, the percolate that aerobic fermentation produces is sent to anaerobic ferment devices progress anaerobic fermentation and prepares biogas, by gained
Biogas is sent to odor treating device；
B, the foul smell that aerobic fermentation produces is collected and is delivered to odor treating device；
C, the mixed gas of biogas and foul smell fully in burning odor treating device, in the present embodiment, when burning, controls natural pond
The flow of gas, make foul smell and biogas weight ratio be 1:1 time burning；
D, by odor treating device, the heat that biogas is produced with foul smell burning is delivered to aerobic fermentation device, is temperature
Too low aerobic fermentation device heats.
In the step (11), the screening of crude waste comprises the following steps：
A, crude waste is sent into feeding equipment, and carries out pretreatment and remove thick rubbish, other tiny rubbish are through broken
It can be sent after bag to installation for fermenting processing；
B, artificial separation is carried out to the thick rubbish of removing, the combustiblerefuse sub-elected can be sent to fermentation after crushing
Device processing.
In the present embodiment technique, obtained derivatived fuel is reduced to 32%, inorganic inert thing for crude waste
It is reduced to 10%；The calorific value of obtained derivatived fuel is 9000kJ/kg, ash content 4.3%, glass dregs content 0.7%.
And effectively shorten the time required to aerobic fermentation technique, percolate and Odor control totle drilling cost are reduced to original diafiltration
The 30% of liquid and Odor control totle drilling cost.
Embodiment 3
As shown in Figure 1, a kind of rubbish of the present invention disperses pretreatment-centralized burning treatment process, comprise the following steps that：
(1) crude waste is transported to several rubbish pre-treatment plants around incineration plant, is pre-processed in each rubbish
Derivatived fuel is prepared into factory；
(2) obtained derivatived fuel in step (1) is transported to the power generation of incineration plant centralized burning.
Wherein, in the step (1), the method that crude waste is prepared into derivatived fuel in rubbish pre-treatment plant is：
(11) will by screening crude waste be placed in aerobic fermentation device carry out aerobic fermentation 80 it is small when；
(12) the desiccation product obtained by aerobic fermentation in step (11) is sent to sorting unit and carries out sorting process, selecting can
Fire part；
(13) combustible constituent selected is prepared into derivatived fuel rod.
Wherein, in step (11), foul smell and the treatment process of percolate that aerobic fermentation produces are：
A, the percolate that aerobic fermentation produces is sent to anaerobic ferment devices progress anaerobic fermentation and prepares biogas, by gained
Biogas is sent to odor treating device；
B, the foul smell that aerobic fermentation produces is collected and is delivered to odor treating device；
C, the mixed gas of biogas and foul smell fully in burning odor treating device, in the present embodiment, when burning, controls natural pond
The flow of gas, make foul smell and biogas weight ratio be 1:0.8 time burning；
D, by odor treating device, the heat that biogas is produced with foul smell burning is delivered to aerobic fermentation device, is temperature
Too low aerobic fermentation device heats.
In the step (11), the screening of crude waste comprises the following steps：
A, crude waste is sent into feeding equipment, and carries out pretreatment and remove thick rubbish, other tiny rubbish are through broken
It can be sent after bag to installation for fermenting processing；
B, artificial separation is carried out to the thick rubbish of removing, the combustiblerefuse sub-elected can be sent to fermentation after crushing
Device processing.
In the present embodiment technique, obtained derivatived fuel is reduced to 32%, inorganic inert thing for crude waste
It is reduced to 10%；The calorific value of obtained derivatived fuel is 8900kJ/kg, ash content 4.0%, glass dregs content 0.67%.
And effectively shorten the time required to aerobic fermentation technique, percolate and Odor control totle drilling cost are reduced to original diafiltration
The 32% of liquid and Odor control totle drilling cost.
Embodiment 4
As shown in Figure 1, a kind of rubbish of the present invention disperses pretreatment-centralized burning treatment process, comprise the following steps that：
(1) crude waste is transported to several rubbish pre-treatment plants around incineration plant, is pre-processed in each rubbish
Derivatived fuel is prepared into factory；
(2) obtained derivatived fuel in step (1) is transported to the power generation of incineration plant centralized burning.
Wherein, in the step (1), the method that crude waste is prepared into derivatived fuel in rubbish pre-treatment plant is：
(11) will by screening crude waste be placed in aerobic fermentation device carry out aerobic fermentation 82 it is small when；
(12) the desiccation product obtained by aerobic fermentation in step (11) is sent to sorting unit and carries out sorting process, selecting can
Fire part；
(13) combustible constituent selected is prepared into derivatived fuel rod.
Wherein, in step (11), foul smell and the treatment process of percolate that aerobic fermentation produces are：
A, the percolate that aerobic fermentation produces is sent to anaerobic ferment devices progress anaerobic fermentation and prepares biogas, by gained
Biogas is sent to odor treating device；
B, the foul smell that aerobic fermentation produces is collected and is delivered to odor treating device；
C, the mixed gas of biogas and foul smell fully in burning odor treating device, in the present embodiment, when burning, controls natural pond
The flow of gas, make foul smell and biogas weight ratio be 1:1.2 times burnings；
D, by odor treating device, the heat that biogas is produced with foul smell burning is delivered to aerobic fermentation device, is temperature
Too low aerobic fermentation device heats.
In the step (11), the screening of crude waste comprises the following steps：
A, crude waste is sent into feeding equipment, and carries out pretreatment and remove thick rubbish, other tiny rubbish are through broken
It can be sent after bag to installation for fermenting processing；
B, artificial separation is carried out to the thick rubbish of removing, the combustiblerefuse sub-elected can be sent to fermentation after crushing
Device processing.
In the present embodiment technique, obtained derivatived fuel is reduced to 32%, inorganic inert thing for crude waste
It is reduced to 10%；The calorific value of obtained derivatived fuel is 9200kJ/kg, ash content 4.5%, glass dregs content 0.66%.
And effectively shorten the time required to aerobic fermentation technique, percolate and Odor control totle drilling cost are reduced to original diafiltration
The 35% of liquid and Odor control totle drilling cost.
Above-described embodiment, has carried out the purpose of the present invention, technical solution and beneficial effect further
Describe in detail, it should be understood that the foregoing is merely the embodiment of the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution, improvement and etc. done, should all include
Within protection scope of the present invention.
Claims (6)
1. a kind of rubbish disperses pretreatment-centralized burning treatment process, it is characterised in that comprises the following steps that：
(1) crude waste is transported to several rubbish pre-treatment plants around incineration plant, in each rubbish pre-treatment plant
It is prepared into derivatived fuel；
(2) obtained derivatived fuel in step (1) is transported to the power generation of incineration plant centralized burning.
2. a kind of rubbish according to claim 1 disperses pretreatment-centralized burning treatment process, it is characterised in that described
In step (1), the method that crude waste is prepared into derivatived fuel in rubbish pre-treatment plant is：
(11) it will be placed in by the crude waste of screening in aerobic fermentation device and carry out aerobic fermentation；
(12) the desiccation product obtained by aerobic fermentation in step (11) is sent to sorting unit and carries out sorting process, select flammable portion
Point；
(13) combustible constituent selected is prepared into derivatived fuel.
3. a kind of rubbish according to claim 2 disperses pretreatment-centralized burning treatment process, it is characterised in that step
(11) in, the aerobic fermentation can produce foul smell and percolate, and the treatment process of foul smell and percolate is as follows：
A, the percolate that aerobic fermentation produces is sent to anaerobic ferment devices progress anaerobic fermentation and prepares biogas, by gained biogas
Send to odor treating device；
B, the foul smell that aerobic fermentation produces is collected and is delivered to odor treating device；
C, the mixed gas of biogas and foul smell fully in burning odor treating device；
D, by odor treating device, the heat that biogas is produced with foul smell burning is delivered to aerobic fermentation device, is that temperature is too low
Aerobic fermentation device heat.
4. a kind of rubbish according to claim 2 disperses pretreatment-centralized burning treatment process, it is characterised in that described
In step (11), the screening of crude waste comprises the following steps：
A, crude waste is sent into feeding equipment, and carries out pretreatment and remove thick rubbish, other tiny rubbish are after broken bag
It can send to installation for fermenting processing；
B, artificial separation is carried out to the thick rubbish of removing, the combustiblerefuse sub-elected can be sent to installation for fermenting after crushing
Processing.
5. a kind of rubbish according to claim 2 disperses pretreatment-centralized burning treatment process, it is characterised in that described
Derivatived fuel is specially derivatived fuel rod.
6. a kind of rubbish according to claim 3 disperses pretreatment-centralized burning treatment process, it is characterised in that step D
In, the aerobic fermentation device is equipped with incubation cavity, and the heat that biogas is produced with foul smell burning is delivered to aerobic hair with combustion product
In the incubation cavity of ferment device.
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Application publication date: 20180504 |